bought a lq9 6.0 back n 05 and put it in my rc sb gmc truck. Still had the 4.8 tuning and put down 333 on the dyno. The motor didnt run smooth since it was on the 4.8 tuning still. Well couple months later I sold it to my nephew and it went away. Well, nephew didnt pay the whole price so I had to go pick it up. Been sitting for about 2yrs now and still has the 4.8 tune. Anyone know a site or place to go and get an efi 6.0 stock tune for Goldie? Ive been driving her to work to get her joints lubed up. Hate to see her just sit in the driveway when she deserves more. Any help or ideas?
Phil
Phil